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Add instructions on ARM64 target build for Json Generation Layer #10

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Nov 9, 2023
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Add instructions on ARM64 target build for Json Generation Layer #10

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e0b7bef
Add instructions on ARM64 target build for Json Generation Layer
kaizhangNV Nov 1, 2023
f68db23
Re-organize the instructions on Linux ARM64 build
kaizhangNV Nov 2, 2023
24ad085
Update BUILD.md
kaizhangNV Nov 9, 2023
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34 changes: 33 additions & 1 deletion BUILD.md
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Expand Up @@ -62,6 +62,36 @@ additional Qt dependencies:
```
sudo apt-get install qt5-default
```
#### Linux ARM64 Additional System Requirements
This repo also supports the Linux ARM64 build.
Ubuntu 20.04 AMD64 (Host) and Ubuntu 20.04 ARM64 (target) have been tested with this repo.

- Run the following instructions on the Host machine.
- Download Ubuntu 20.04 ARM64 file system image [here](http://cloud-images.ubuntu.com/focal/current/) and extract it to the Host machine.
- Install and Setup Qemu:
```
# Install the Qemu on Ubuntu Host
sudo apt-get install qemu-user-static

# Copy qemu-aarch64-static and qemu-arm-static to target file system
export TARGET_ROOFS=<Root directory of target file system>
sudo -E cp /usr/bin/qemu-aarch64-static ${TARGET_ROOFS}/usr/bin/
sudo -E cp /usr/bin/qemu-arm-static ${TARGET_ROOFS}/usr/bin/

# Mount the chroot points
sudo -E mount /sys ${TARGET_ROOFS}/sys -o bind
sudo -E mount /proc ${TARGET_ROOFS}/proc -o bind
sudo -E mount /dev ${TARGET_ROOFS}/dev -o bind

# Setup resolv.conf for DNS server
sudo -E mv ${TARGET_ROOFS}/etc/resolv.conf ${TARGET_ROOFS}/etc/resolv.conf.saved
sudo -E cp /etc/resolv.conf ${TARGET_ROOFS}/etc
```
- Log in to Linux ARM64 sandbox:
```
# Run chroot to target system sandbox
sudo LC_ALL=C chroot ${TARGET_ROOFS} /bin/bash
```

### Fedora Core System Requirements

Expand Down Expand Up @@ -176,7 +206,8 @@ ctest -C Debug --output-on-failure --parallel 16
ctest -C Release --output-on-failure --parallel 16
```

### Linux and macOS Build
### Linux AMD64, Linux ARM64 and macOS Build
For Linux ARM64 build, run the following commands in [chroot sandbox environment](BUILD.md#linux-arm64-additional-system-requirements).
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```
git clone --recurse-submodules git@github.com:KhronosGroup/VulkanTools-ForSC.git
cd VulkanTools
Expand Down Expand Up @@ -232,6 +263,7 @@ To use, simply push it to the device and run it. The resulting json file will b
/sdcard/Android/<output>.json
```


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## The VulkanTools repository

### Cloning the repository and updaing subcomponents
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